Well, the Hijri date 21 Shaban 1412 corresponds to the Gregorian date Monday, 24 February 1992. This date lies in the eighth month of the Hijri year 1412 AH, which is Shaban of 1412 AH. Both this Hijri and Gregorian date occur on the single day that is Monday without any doubt. The Arabic date 1412/08/21 is calculated using the Umm Al-Qura calendar and the sighting of the moon. One thing to remember is that this Arabic date may occur on different Gregorian date depending upon the region and country and obviously the moon.
If you are still not sure about the date then you can use our Arabic date converter.
The following is the conversion of the Gregorian date 24 February 1992 to its equivalent Arabic date.
The following is the conversion of the Arabic date 21 Shaban 1412 AH to its equivalent Gregorian date.
وَذَرْنِى وَٱلْمُكَذِّبِينَ أُو۟لِى ٱلنَّعْمَةِ وَمَهِّلْهُمْ قَلِيلًا
Leave Me to deal with the deniers, lords of ease and comfort (in this life); and do thou respite them awhile.
Surah Al-Muzzammil(73:11)
Sahih al-Bukhari
Forgetfulness in Prayer
Chapter: To say Takbir in the prostrations of Sahw
Narrated Abu Huraira:
The Prophet (ﷺ) offered one of the evening prayers (the sub-narrator Muhammad said, "I think that it was most probably the `Asr prayer") and he finished it after offering two rak`at only. He then stood near a price of wood in front of the Mosque and put his hand over it. Abu Bakr and `Umar were amongst those who were present, but they dared not talk to him about that (because of excessive respect for him), and those who were in a hurry went out. They said, "Has the prayer been reduced?" A man who was called Dhul-Yadain by the Prophet (ﷺ) said (to the Prophet), "Has the prayer been reduced or have you forgotten?" He said, "Neither have I forgotten, nor has the prayer been reduced." He said, "Certainly you have forgotten." So the Prophet (ﷺ) offered two more rak`at and performed Taslim and then said Takbir and performed a prostration of Sahu like his ordinary prostration or a bit longer and then raised his head and said Takbir and then put his head down and performed a prostration like his ordinary prostration or a bit longer, and then raised his head and said Takbir.
Sahih al-Bukhari 1229